M1.6 earthquake 154 km WSW of Adak, Alaska

Magnitude

1.6 (ml), micro

Local time

Wed, Jun 16, 2021, 2:27 PM HADT

UTC

2021-06-16 23:27:05 UTC

Depth

8.2 km (5.1 mi), shallow

Epicenter

51.384° N, 178.719° W

Region

Alaska

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.6 km horizontally, 0.8 km in depth

Magnitude uncertainty

±0.33

Depth from

From location

Station coverage gap

281°, poorly surrounded by stations

Stations used

10

After

1. 2.6157 km WSW of Adak, AlaskaFri, Jun 18, 2:04 AM HADT · 1926 days ago · 28 km deep · 4 km away
2. 1.5111 km WSW of Adak, AlaskaFri, Jun 18, 4:54 AM HADT · 1925 days ago · 12 km deep · 43 km away
3. 2.0Andreanof Islands, Aleutian Islands, AlaskaFri, Jun 18, 6:10 AM HADT · 1925 days ago · 90 km deep · 90 km away
4. 1.8130 km WSW of Adak, AlaskaFri, Jun 18, 9:39 AM HADT · 1925 days ago · 45 km deep · 32 km away
5. 2.776 km W of Adak, AlaskaFri, Jun 18, 2:45 PM HADT · 1925 days ago · 110 km deep · 80 km away
6. 1.8158 km WSW of Adak, AlaskaSat, Jun 19, 4:34 AM HADT · 1924 days ago · 12 km deep · 21 km away
7. 1.8137 km WSW of Adak, AlaskaSat, Jun 19, 3:43 PM HADT · 1924 days ago · 16 km deep · 27 km away
8. 1.6145 km W of Adak, AlaskaTue, Jun 22, 7:49 PM HADT · 1921 days ago · 7 km deep · 54 km away
9. 1.898 km SW of Adak, AlaskaTue, Jun 22, 9:40 PM HADT · 1921 days ago · 38 km deep · 70 km away
10. 1.5133 km WSW of Adak, AlaskaTue, Jun 22, 10:30 PM HADT · 1921 days ago · 14 km deep · 27 km away
11. 1.888 km W of Adak, AlaskaSun, Jun 27, 3:19 PM HADT · 1916 days ago · 8 km deep · 76 km away
12. 1.8200 km W of Adak, AlaskaSun, Jun 27, 8:12 PM HADT · 1916 days ago · 78 km deep · 70 km away
13. 1.769 km WSW of Adak, AlaskaSun, Jun 27, 9:57 PM HADT · 1916 days ago · 52 km deep · 85 km away
14. 1.8133 km WSW of Adak, AlaskaMon, Jun 28, 4:51 AM HADT · 1915 days ago · 22 km deep · 21 km away
15. 2.9107 km WSW of Adak, AlaskaMon, Jun 28, 5:40 AM HADT · 1915 days ago · 49 km deep · 50 km away
16. 1.6123 km WSW of Adak, AlaskaMon, Jun 28, 9:13 AM HADT · 1915 days ago · 42 km deep · 35 km away
17. 1.8161 km WSW of Adak, AlaskaMon, Jun 28, 11:04 AM HADT · 1915 days ago · 23 km deep · 10 km away
18. 1.7138 km WSW of Adak, AlaskaMon, Jun 28, 11:58 AM HADT · 1915 days ago · 41 km deep · 26 km away
19. 1.7126 km WSW of Adak, AlaskaMon, Jun 28, 2:06 PM HADT · 1915 days ago · 25 km deep · 29 km away
20. 1.8131 km WSW of Adak, AlaskaWed, Jun 30, 6:15 PM HADT · 1913 days ago · 13 km deep · 32 km away
21. 1.9230 km WSW of Adak, AlaskaThu, Jul 1, 12:38 AM HADT · 1913 days ago · 41 km deep · 81 km away
22. 1.972 km SW of Adak, AlaskaThu, Jul 1, 10:46 AM HADT · 1912 days ago · 34 km deep · 86 km away
23. 1.784 km SW of Adak, AlaskaFri, Jul 2, 1:17 PM HADT · 1911 days ago · 26 km deep · 76 km away
24. 1.5134 km SW of Adak, AlaskaFri, Jul 2, 5:14 PM HADT · 1911 days ago · 26 km deep · 41 km away
25. 1.7152 km WSW of Adak, AlaskaSat, Jul 3, 9:31 AM HADT · 1910 days ago · 25 km deep · 26 km away
26. 2.4104 km WNW of Adak, AlaskaSat, Jul 3, 1:22 PM HADT · 1910 days ago · 247 km deep · 99 km away
27. 1.6194 km WSW of Adak, AlaskaSat, Jul 3, 9:59 PM HADT · 1910 days ago · 22 km deep · 43 km away
28. 1.5237 km W of Adak, AlaskaSun, Jul 4, 10:43 PM GMT+12 · 1910 days ago · 9 km deep · 91 km away
29. 1.7131 km W of Adak, AlaskaSun, Jul 4, 2:43 AM HADT · 1910 days ago · 8 km deep · 38 km away
30. 3.9117 km SW of Adak, AlaskaSun, Jul 4, 10:05 AM HADT · 1909 days ago · 42 km deep · 52 km away
31. 3.7135 km SW of Adak, AlaskaSun, Jul 4, 5:14 PM HADT · 1909 days ago · 27 km deep · 37 km away
32. 1.670 km SW of Adak, AlaskaSun, Jul 4, 7:50 PM HADT · 1909 days ago · 44 km deep · 92 km away
33. 1.6130 km WSW of Adak, AlaskaSun, Jul 4, 8:10 PM HADT · 1909 days ago · 17 km deep · 29 km away
34. 1.667 km W of Adak, AlaskaSun, Jul 4, 9:32 PM HADT · 1909 days ago · 13 km deep · 97 km away
35. 1.9Andreanof Islands, Aleutian Islands, AlaskaSun, Jul 4, 9:48 PM HADT · 1909 days ago · 26 km deep · 69 km away
36. 2.0194 km WSW of Adak, AlaskaMon, Jul 5, 7:42 AM HADT · 1908 days ago · 16 km deep · 42 km away
37. 2.1196 km WSW of Adak, AlaskaMon, Jul 5, 12:30 PM HADT · 1908 days ago · 15 km deep · 45 km away
38. 2.9203 km WSW of Adak, AlaskaMon, Jul 5, 12:31 PM HADT · 1908 days ago · 17 km deep · 52 km away
39. 2.0197 km WSW of Adak, AlaskaMon, Jul 5, 12:35 PM HADT · 1908 days ago · 18 km deep · 47 km away
40. 1.9100 km WSW of Adak, AlaskaMon, Jul 5, 1:07 PM HADT · 1908 days ago · 62 km deep · 54 km away
41. 1.864 km WSW of Adak, AlaskaMon, Jul 5, 1:30 PM HADT · 1908 days ago · 10 km deep · 91 km away
42. 2.7237 km W of Adak, AlaskaWed, Jul 7, 5:50 AM HADT · 1906 days ago · 13 km deep · 99 km away
43. 1.9Andreanof Islands, Aleutian Islands, AlaskaWed, Jul 7, 6:22 PM HADT · 1906 days ago · 22 km deep · 27 km away
44. 1.8158 km WSW of Adak, AlaskaThu, Jul 8, 2:14 AM HADT · 1906 days ago · 5 km deep · 9 km away
45. 1.7130 km WSW of Adak, AlaskaThu, Jul 8, 9:22 AM HADT · 1905 days ago · 7 km deep · 32 km away
46. 1.9151 km WSW of Adak, AlaskaThu, Jul 8, 3:14 PM HADT · 1905 days ago · 8 km deep · 6 km away
47. 1.592 km WSW of Adak, AlaskaThu, Jul 8, 5:50 PM HADT · 1905 days ago · 39 km deep · 64 km away
48. 1.9167 km WSW of Adak, AlaskaFri, Jul 9, 3:57 AM HADT · 1905 days ago · 14 km deep · 14 km away
49. 2.0186 km WSW of Adak, AlaskaFri, Jul 9, 7:13 AM HADT · 1904 days ago · 13 km deep · 33 km away
50. 1.7144 km SW of Adak, AlaskaFri, Jul 9, 9:14 PM HADT · 1904 days ago · 26 km deep · 35 km away
51. 1.5103 km W of Adak, AlaskaSat, Jul 10, 6:04 AM HADT · 1903 days ago · 5 km deep · 69 km away
52. 1.9123 km WSW of Adak, AlaskaSat, Jul 10, 8:17 PM HADT · 1903 days ago · 10 km deep · 35 km away
53. 1.7197 km WSW of Adak, AlaskaSun, Jul 11, 3:01 AM HADT · 1903 days ago · 22 km deep · 45 km away
54. 2.2156 km WSW of Adak, AlaskaSun, Jul 11, 3:13 AM HADT · 1903 days ago · 25 km deep · 26 km away
55. 1.9241 km WSW of Adak, AlaskaSun, Jul 11, 1:16 AM GMT-12 · 1902 days ago · 26 km deep · 87 km away
56. 1.5142 km SW of Adak, AlaskaSun, Jul 11, 11:52 AM HADT · 1902 days ago · 42 km deep · 57 km away
57. 3.2250 km WSW of Adak, AlaskaSun, Jul 11, 1:47 PM GMT-12 · 1902 days ago · 26 km deep · 97 km away
58. 1.6155 km WSW of Adak, AlaskaSun, Jul 11, 9:43 PM HADT · 1902 days ago · 24 km deep · 25 km away
59. 2.595 km WSW of Adak, AlaskaMon, Jul 12, 9:07 PM HADT · 1901 days ago · 73 km deep · 59 km away
60. 1.7129 km WSW of Adak, AlaskaMon, Jul 12, 9:13 PM HADT · 1901 days ago · 5 km deep · 32 km away

The first 60 of 169.

Before

1. 2.6156 km WSW of Adak, AlaskaTue, Jun 15, 6:28 AM HADT · 1928 days ago · 10 km deep · 19 km away
2. 1.6157 km WSW of Adak, AlaskaSat, Jun 12, 8:17 PM HADT · 1931 days ago · 20 km deep · 12 km away
3. 2.9247 km WSW of Adak, AlaskaFri, Jun 11, 7:48 PM GMT-12 · 1932 days ago · 35 km deep · 93 km away
4. 2.6144 km WSW of Adak, AlaskaFri, Jun 11, 9:19 PM HADT · 1932 days ago · 9 km deep · 10 km away
5. 3.0150 km WSW of Adak, AlaskaFri, Jun 11, 9:19 PM HADT · 1932 days ago · 18 km deep · 8 km away
6. 1.7133 km WSW of Adak, AlaskaFri, Jun 11, 12:04 PM HADT · 1932 days ago · 9 km deep · 32 km away
7. 2.754 km WSW of Adak, AlaskaThu, Jun 10, 9:48 PM HADT · 1933 days ago · 96 km deep · 99 km away
8. 1.5169 km W of Adak, AlaskaTue, Jun 8, 8:34 AM HADT · 1935 days ago · 9 km deep · 46 km away
9. 1.6127 km WSW of Adak, AlaskaSun, Jun 6, 11:37 AM HADT · 1937 days ago · 7 km deep · 30 km away
10. 1.8158 km WSW of Adak, AlaskaSun, Jun 6, 2:12 AM HADT · 1938 days ago · 18 km deep · 5 km away
11. 3.482 km SW of Adak, AlaskaMon, May 31, 2:54 PM HADT · 1943 days ago · 45 km deep · 80 km away
12. 1.7120 km WSW of Adak, AlaskaSun, May 30, 6:11 PM HADT · 1944 days ago · 26 km deep · 34 km away
13. 2.0108 km WSW of Adak, AlaskaSat, May 29, 6:57 AM HADT · 1945 days ago · 48 km deep · 49 km away
14. 1.9128 km WSW of Adak, AlaskaFri, May 28, 7:28 PM HADT · 1946 days ago · 42 km deep · 32 km away
15. 2.7154 km W of Adak, AlaskaThu, May 27, 11:33 AM HADT · 1947 days ago · 90 km deep · 31 km away
16. 1.5125 km WSW of Adak, AlaskaTue, May 25, 11:51 PM HADT · 1949 days ago · 15 km deep · 35 km away
17. 3.1144 km W of Adak, AlaskaSun, May 23, 12:06 PM HADT · 1951 days ago · 81 km deep · 30 km away
18. 1.581 km W of Adak, AlaskaSun, May 23, 10:39 AM HADT · 1951 days ago · 8 km deep · 82 km away
19. 2.0157 km WSW of Adak, AlaskaFri, May 21, 11:06 PM HADT · 1953 days ago · 15 km deep · 10 km away
20. 1.6141 km WSW of Adak, AlaskaFri, May 21, 3:15 AM HADT · 1954 days ago · 23 km deep · 19 km away

From the USGS Earthquake Hazards Program and its partner networks, event av91283391. Read Sat, Sep 26, 2026, 12:39 AM UTC.